cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A206883 T(n,k)=Number of nXk 0..1 arrays avoiding 0 1 0 horizontally and 1 0 1 vertically.

Table of values

n a(n)
1 2
2 4
3 4
4 7
5 16
6 7
7 12
8 49
9 49
10 12
11 21
12 144
13 230
14 144
15 21
16 37
17 441
18 1011
19 1011
20 441
21 37
22 65
23 1369
24 4705
25 6478
26 4705
27 1369
28 65
29 114
30 4225
31 22412
32 44879
33 44879
34 22412
35 4225
36 114
37 200
38 12996
39 105936
40 321393
41 472412
42 321393
43 105936
44 12996
45 200
46 351
47 40000
48 497727

List of values

[2, 4, 4, 7, 16, 7, 12, 49, 49, 12, 21, 144, 230, 144, 21, 37, 441, 1011, 1011, 441, 37, 65, 1369, 4705, 6478, 4705, 1369, 65, 114, 4225, 22412, 44879, 44879, 22412, 4225, 114, 200, 12996, 105936, 321393, 472412, 321393, 105936, 12996, 200, 351, 40000, 497727]